<template>
  <div :class="prefixCls" :style="{ width: containerWidth }">
    <ImgUpload
      :fullscreen="fullscreen"
      @uploading="handleImageUploading"
      @done="handleDone"
      v-if="showImageUpload"
      v-show="editorRef"
      :disabled="disabled"
    />
    <textarea :id="tinymceId" ref="elRef" :style="{ visibility: 'hidden' }" v-if="!initOptions.inline"></textarea>
    <slot v-else></slot>
  </div>
</template>

<script lang="ts">
  import type { Editor, RawEditorSettings } from 'tinymce'
  import tinymce from 'tinymce/tinymce'
  import 'tinymce/themes/silver'
  import 'tinymce/icons/default/icons'
  import 'tinymce/plugins/advlist'
  import 'tinymce/plugins/anchor'
  import 'tinymce/plugins/autolink'
  import 'tinymce/plugins/autosave'
  import 'tinymce/plugins/code'
  import 'tinymce/plugins/codesample'
  import 'tinymce/plugins/directionality'
  import 'tinymce/plugins/fullscreen'
  import 'tinymce/plugins/hr'
  import 'tinymce/plugins/insertdatetime'
  import 'tinymce/plugins/link'
  import 'tinymce/plugins/lists'
  import 'tinymce/plugins/media'
  import 'tinymce/plugins/nonbreaking'
  import 'tinymce/plugins/noneditable'
  import 'tinymce/plugins/pagebreak'
  import 'tinymce/plugins/paste'
  import 'tinymce/plugins/preview'
  import 'tinymce/plugins/print'
  import 'tinymce/plugins/save'
  import 'tinymce/plugins/searchreplace'
  import 'tinymce/plugins/spellchecker'
  import 'tinymce/plugins/tabfocus'
  // import 'tinymce/plugins/table';
  import 'tinymce/plugins/template'
  import 'tinymce/plugins/textpattern'
  import 'tinymce/plugins/visualblocks'
  import 'tinymce/plugins/visualchars'
  import 'tinymce/plugins/wordcount'

  import { defineComponent, computed, nextTick, ref, unref, watch, onDeactivated, onBeforeUnmount } from 'vue'
  import ImgUpload from './ImgUpload.vue'
  import { toolbar, plugins } from './tinymce'
  import { buildShortUUID } from '/@/utils/uuid'
  import { bindHandlers } from './helper'
  import { onMountedOrActivated } from '/@/hooks/core/onMountedOrActivated'
  import { useDesign } from '/@/hooks/web/useDesign'
  import { isNumber } from '/@/utils/is'
  import { useLocale } from '/@/locales/useLocale'
  import { useAppStore } from '/@/store/modules/app'

  const tinymceProps = {
    options: {
      type: Object as PropType<Partial<RawEditorSettings>>,
      default: {},
    },
    value: {
      type: String,
    },

    toolbar: {
      type: Array as PropType<string[]>,
      default: toolbar,
    },
    plugins: {
      type: Array as PropType<string[]>,
      default: plugins,
    },
    modelValue: {
      type: String,
    },
    height: {
      type: [Number, String] as PropType<string | number>,
      required: false,
      default: 400,
    },
    width: {
      type: [Number, String] as PropType<string | number>,
      required: false,
      default: 'auto',
    },
    showImageUpload: {
      type: Boolean,
      default: true,
    },
  }

  export default defineComponent({
    name: 'Tinymce',
    components: { ImgUpload },
    inheritAttrs: false,
    props: tinymceProps,
    emits: ['change', 'update:modelValue', 'inited', 'init-error'],
    setup(props, { emit, attrs }) {
      const editorRef = ref<Nullable<Editor>>(null)
      const fullscreen = ref(false)
      const tinymceId = ref<string>(buildShortUUID('tiny-vue'))
      const elRef = ref<Nullable<HTMLElement>>(null)

      const { prefixCls } = useDesign('tinymce-container')

      const appStore = useAppStore()

      const tinymceContent = computed(() => props.modelValue)

      const containerWidth = computed(() => {
        const width = props.width
        if (isNumber(width)) {
          return `${width}px`
        }
        return width
      })

      const skinName = computed(() => {
        return appStore.getDarkMode === 'light' ? 'oxide' : 'oxide-dark'
      })

      const langName = computed(() => {
        const lang = useLocale().getLocale.value
        return ['zh_CN', 'en'].includes(lang) ? lang : 'zh_CN'
      })

      const initOptions = computed((): RawEditorSettings => {
        const { height, options, toolbar, plugins } = props
        const publicPath = import.meta.env.VITE_PUBLIC_PATH || '/'
        return {
          selector: `#${unref(tinymceId)}`,
          height,
          toolbar,
          menubar: 'file edit insert view format table',
          plugins,
          language_url: publicPath + 'resource/tinymce/langs/' + langName.value + '.js',
          language: langName.value,
          branding: false,
          default_link_target: '_blank',
          link_title: false,
          object_resizing: false,
          auto_focus: true,
          skin: skinName.value,
          skin_url: publicPath + 'resource/tinymce/skins/ui/' + skinName.value,
          content_css: publicPath + 'resource/tinymce/skins/ui/' + skinName.value + '/content.min.css',
          ...options,
          setup: (editor: Editor) => {
            editorRef.value = editor
            editor.on('init', (e) => initSetup(e))
          },
        }
      })

      const disabled = computed(() => {
        const { options } = props
        const getdDisabled = options && Reflect.get(options, 'readonly')
        const editor = unref(editorRef)
        if (editor) {
          editor.setMode(getdDisabled ? 'readonly' : 'design')
        }
        return getdDisabled ?? false
      })

      watch(
        () => attrs.disabled,
        () => {
          const editor = unref(editorRef)
          if (!editor) {
            return
          }
          editor.setMode(attrs.disabled ? 'readonly' : 'design')
        },
      )

      onMountedOrActivated(() => {
        if (!initOptions.value.inline) {
          tinymceId.value = buildShortUUID('tiny-vue')
        }
        nextTick(() => {
          setTimeout(() => {
            initEditor()
          }, 30)
        })
      })

      onBeforeUnmount(() => {
        destory()
      })

      onDeactivated(() => {
        destory()
      })

      function destory() {
        if (tinymce !== null) {
          tinymce?.remove?.(unref(initOptions).selector!)
        }
      }

      function initEditor() {
        const el = unref(elRef)
        if (el) {
          el.style.visibility = ''
        }
        tinymce
          .init(unref(initOptions))
          .then((editor) => {
            emit('inited', editor)
          })
          .catch((err) => {
            emit('init-error', err)
          })
      }

      function initSetup(e) {
        const editor = unref(editorRef)
        if (!editor) {
          return
        }
        const value = props.modelValue || ''

        editor.setContent(value)
        bindModelHandlers(editor)
        bindHandlers(e, attrs, unref(editorRef))
      }

      function setValue(editor: Recordable, val: string, prevVal?: string) {
        if (editor && typeof val === 'string' && val !== prevVal && val !== editor.getContent({ format: attrs.outputFormat })) {
          editor.setContent(val)
        }
      }

      function bindModelHandlers(editor: any) {
        const modelEvents = attrs.modelEvents ? attrs.modelEvents : null
        const normalizedEvents = Array.isArray(modelEvents) ? modelEvents.join(' ') : modelEvents

        watch(
          () => props.modelValue,
          (val: string, prevVal: string) => {
            setValue(editor, val, prevVal)
          },
        )

        watch(
          () => props.value,
          (val: string, prevVal: string) => {
            setValue(editor, val, prevVal)
          },
          {
            immediate: true,
          },
        )

        editor.on(normalizedEvents ? normalizedEvents : 'change keyup undo redo', () => {
          const content = editor.getContent({ format: attrs.outputFormat })
          emit('update:modelValue', content)
          emit('change', content)
        })

        editor.on('FullscreenStateChanged', (e) => {
          fullscreen.value = e.state
        })
      }

      function handleImageUploading(name: string) {
        const editor = unref(editorRef)
        if (!editor) {
          return
        }
        editor.execCommand('mceInsertContent', false, getUploadingImgName(name))
        const content = editor?.getContent() ?? ''
        setValue(editor, content)
      }

      function handleDone(name: string, url: string) {
        const editor = unref(editorRef)
        if (!editor) {
          return
        }
        const content = editor?.getContent() ?? ''
        const val = content?.replace(getUploadingImgName(name), `<img src="${url}"/>`) ?? ''
        setValue(editor, val)
      }

      function getUploadingImgName(name: string) {
        return `[uploading:${name}]`
      }

      return {
        prefixCls,
        containerWidth,
        initOptions,
        tinymceContent,
        elRef,
        tinymceId,
        handleImageUploading,
        handleDone,
        editorRef,
        fullscreen,
        disabled,
      }
    },
  })
</script>

<style lang="less" scoped></style>

<style lang="less">
  @prefix-cls: ~'@{namespace}-tinymce-container';

  .@{prefix-cls} {
    position: relative;
    line-height: normal;

    textarea {
      z-index: -1;
      visibility: hidden;
    }
  }
</style>
